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남부지역 논에서 사료맥류-사료용 옥수수-하파귀리 삼모작 시 조사료 생산성 및 사료가치 KCI 등재
Forage Productivity and Feed Value in Triple Cropping Systems with Winter Forage Crops-Silage Corn-Summer Oat Cultivation at Paddy Field in Southern Region of Korea
pp.87-93
이 연구는 남부지역에서 동계 사료맥류, 하계 옥수수, 추계 하파귀리 등 삼모작 재배기술 확립하기 위해 옥수수의 앞그루에 적합한 사료용 맥류 맥종 선정과 더불어 옥수수 뒷그루로 귀리를 가을재배 시 생산성 및 사료가치를 검토하고자 실시하였다. 월동 사료작물을 옥수수 파종기에 맞춰 수확할 경우 호밀이 생초수량 32.0톤/ha, 건물수량 5.8톤/ha로 다른 작물에 비해 높은 수량을 보였다. 하계 사료용 옥수수는 생초수량으로 72.1톤/ha, 건물수량으로 20.2톤/ha 수확되었으며, 사료가치는 조단백질 함량이 7.4%, 가소화영양소 함량이 69.3%로 양호한 생육과 사료가치를 보였다. 가을재배용 귀리의 출수기는 10월 10일이었으며, 생초수량은 44.3톤/ha, 건물수량은 8.5톤/ha이었고, 사료가치는 조단백질이 11.3%, 가소화영양소 함량이 59.1%를 나타내었다. 따라서 남부지역에서 조사료 연중 생산을 위해 가을재배용 귀리의 도입으로 삼모작이 가능하며, 하계 옥수수의 최대 안전 생산을 위한 월동 사료작물은 호밀이 가장 유리한 것으로 사료되었다.
Multiple cropping system is an important agricultural system in Korea, which is significant to increase forage yield and promote agricultural economic development. This experiment was carried out to develop triple cropping systems (winter cereals crop for forage - silage corn - summer oats) for maximum year-around forage production at paddy field in southern region. We also to select a winter forage crop to determine corn planting time, and to examine the forage productivity and feed value of summer cultivated oat, which was planted after corn cultivation. When winter cereal crops for forages are harvested in accordance with and corn planter, the fresh yield and dry matter yield of rye were 32.0 ton/ha and 5.8 ton/ha, respectively, showing higher yielding compared to other winter crops. Corn silage as summer crop was showed the fresh yield and dry matter yield of 72.1 ton/ha and 20.2 ton/ha, respectively. In the feed value, crude protein and TDN contents were 7.4% and 69.3%, respectively. They was showed higher productivity and feed value. The heading date of High-speed oat was October 10, and its fresh yield and dry matter yield were 37.6 ton/ha and 8.0 ton/ha, respectively. As a feed value, crude protein and TDN content was 11.4% and 59.1%, respectively. Therefore, triple cropping systems for the production of forage all throughout the year are possible with the introduction of summer oats in the southern region, and rye could be the most suitable winter forage crops for triple cropping systems.
